package gateway.config.cors;

import org.springframework.boot.web.servlet.FilterRegistrationBean;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.cors.CorsConfiguration;
import org.springframework.web.cors.UrlBasedCorsConfigurationSource;
import org.springframework.web.filter.CorsFilter;

/**
 * 跨域配置
 *
 * @author 米泽鹏
 * @since 2018/8/9 15:59
 */
@Configuration
public class CorsConfig {

	@Bean
	public CorsFilter corsFilter() {
		UrlBasedCorsConfigurationSource source = new UrlBasedCorsConfigurationSource();
		CorsConfiguration config = new CorsConfiguration();
		// #允许向该服务器提交请求的URI，*表示全部允许
		config.addAllowedOrigin(CorsConfiguration.ALL);
		// 允许cookies跨域
		config.setAllowCredentials(true);
		// #允许访问的头信息,*表示全部
		config.addAllowedHeader(CorsConfiguration.ALL);
		// 允许提交请求的方法，*表示全部允许
		config.addAllowedMethod(CorsConfiguration.ALL);
		source.registerCorsConfiguration("/**", config);
		return new CorsFilter(source);
	}

	/**
	 * 配置过滤器
	 */
	@Bean
	public FilterRegistrationBean<CorsFilter> someFilterRegistration() {
		FilterRegistrationBean<CorsFilter> registration = new FilterRegistrationBean<>();
		registration.setFilter(corsFilter());
		registration.addUrlPatterns("/*");
		registration.setName("corsFilter");
		registration.setOrder(Integer.MIN_VALUE);
		return registration;
	}

}
